RSC Advances最新文献

{"title":"Correction: Iodine-mediated synthesis of indolyl-1,3,4-thiadiazole amine derivatives and their DFT analysis","authors":"Vartika Vaishya, Manish K. Mehra, Sarvesh Kumar Pandey and Meenakshi Pilania","doi":"10.1039/D5RA90063H","DOIUrl":"https://doi.org/10.1039/D5RA90063H","url":null,"abstract":"<p >Correction for ‘Iodine-mediated synthesis of indolyl-1,3,4-thiadiazole amine derivatives and their DFT analysis’ by Vartika Vaishya <em>et al.</em>, <em>RSC Adv.</em>, 2025, <strong>15</strong>, 15108–15115, https://doi.org/10.1039/D5RA02026C.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17378-17378"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra90063h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transforming invasive weeds into energy solutions: water hyacinth-based hybrid electrodes for green supercapacitors†","authors":"Shilpa Simon, Anila Rose Cherian and Sreeja P. B","doi":"10.1039/D5RA02140E","DOIUrl":"https://doi.org/10.1039/D5RA02140E","url":null,"abstract":"<p >The excessive proliferation of <em>Eichhornia crassipes</em> (water hyacinth) poses significant environmental challenges; however, its abundant biomass offers a sustainable solution for energy storage applications. This study presents an eco-friendly approach to fabricating high-performance supercapacitor electrodes using water hyacinth-derived activated carbon (WH), polypyrrole (PPy), and titanium dioxide (TiO<small>₂</small>). The WH–TiO<small>₂</small>/PPy hybrid electrode was synthesized <em>via</em> hydrothermal treatment and interfacial polymerization, ensuring a resource-efficient and environmentally responsible process. The composite exhibited a high gravimetric capacitance of 610 F g<small>⁻¹</small> at 0.5 A g<small>⁻¹</small> in 3 M KOH, with excellent cycling stability (94% retention after 5000 cycles). An asymmetric supercapacitor with WH–TiO<small>₂</small>/PPy as the positive electrode and activated carbon as the negative electrode delivered an energy density of 98 W h kg<small>⁻¹</small> and a power density of 5606 W kg<small>⁻¹</small>. This work highlights the potential of transforming invasive biomass into cost-effective, high-performance energy storage materials, advancing the principles of green chemistry through waste valorization and sustainable material design.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17302-17316"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02140e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Octylamine mediated growth of europium doped silver selenide nanoparticles as a superior electrode material for electrochemical applications","authors":"Tapan Kumar Sarangi, Rashmita Panda, Bhagaban Kishan and Kusha Kumar Naik","doi":"10.1039/D5RA03245H","DOIUrl":"https://doi.org/10.1039/D5RA03245H","url":null,"abstract":"<p >This study explores the synthesis and characterization of europium-doped silver selenide (Eu–Ag<small>₂</small>Se) nanoparticles along with their application in electrochemical studies. The nanoparticles are synthesized <em>via</em> a hydrothermal method using silver, selenide and europium as precursors in the environment of octylamine solution. Comprehensive structural, morphological, and functional analyses are performed using X-ray diffraction (XRD), field-effect scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), and Fourier transform infrared spectroscopy (FTIR). Electrochemical performance <em>i.e.</em>, in supercapacitors and glucose sensors, is assessed through electrochemical experiments like cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS). It has been observed that Europium doping significantly enhanced the specific capacitance, achieving 337.8 F g<small>⁻¹</small> at a current density of 0.14 A g<small>⁻¹</small>, with an energy density of 8.4 W h kg<small>⁻¹</small> and a power density of 29.9 W kg<small>⁻¹</small>. Additionally, the materials exhibited excellent cyclic stability, retaining 93% of their initial capacitance after 6000 cycles. Similarly, the sensitivity of the Eu–Ag<small>₂</small>Se nanoparticles is calculated as 0.52 μA μM<small>⁻¹</small>cm<small>⁻²</small> in the linear range having good stability, selectivity and reproducibility. These results highlight the potential of Eu–Ag<small>₂</small>Se nanoparticles as a promising candidate for next-generation energy storage systems and glucose sensing applications.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17266-17276"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra03245h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic carbon nanotube-catalyzed multicomponent synthesis of 5-substituted-1H-tetrazoles†","authors":"Ahmad Sajjadi, Vicky Jain, Suhas Ballal, Munthar Kadhim Abosaoda, Abhayveer Singh, T. Krithiga, Subhashree Ray and Naveen Chandra Talniya","doi":"10.1039/D5RA02641E","DOIUrl":"https://doi.org/10.1039/D5RA02641E","url":null,"abstract":"<p >This study presents a pioneering approach with the introduction of a novel magnetic carbon nanotube composite, AlFe<small>₂</small>O<small>₄</small>–MWCNT–TEA–Ni(<small>II</small>), designed as an efficient catalyst for the multicomponent synthesis of 5-substituted-1<em>H</em>-tetrazoles (18 examples, yields 89–98%). The primary objectives were to develop and evaluate this catalyst's ability to promote the formation of tetrazoles under eco-friendly conditions. The methods involved synthesizing the catalyst by combining AlFe<small>₂</small>O<small>₄</small>, MWCNTs, TEA, and Ni(<small>II</small>), then testing its catalytic activity using various aromatic aldehydes, hydroxylamine, and sodium azide in DMF at 50 °C. The reaction parameters, including temperature, catalyst amount, and reaction time, were optimized for maximum yield and selectivity. Results showed that the catalyst achieved high yields of tetrazoles and demonstrated significant selectivity in a remarkably short reaction time, showcasing its exceptional efficiency. The magnetism of AlFe<small>₂</small>O<small>₄</small> facilitated easy recovery and recyclability (seven runs), underscoring the catalyst's sustainability. This system's advantages include its high activity, reusability, and environmentally friendly nature, making it a promising approach for green nitrogen-rich heterocycle synthesis. Prospects involve exploring the catalyst's potential in large-scale applications, expanding its use to other heterocyclic syntheses, and investigating its performance with different substrates. This work underscores the significant role of integrating magnetic nanomaterials into catalytic systems to promote sustainable and efficient organic synthesis methods, offering a promising future for the field.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17330-17348"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02641e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Organic–inorganic hexahalometalate-crystal semiconductor K2(Sn, Se, Te)Br6 hybrid double perovskites for solar energy applications","authors":"K. Bouferrache, M. A. Ghebouli, B. Ghebouli, M. Fatmi and Sameh I. Ahmed","doi":"10.1039/D5RA90062J","DOIUrl":"https://doi.org/10.1039/D5RA90062J","url":null,"abstract":"<p >Correction for ‘Organic–inorganic hexahalometalate-crystal semiconductor K<small>₂</small>(Sn, Se, Te)Br<small>₆</small> hybrid double perovskites for solar energy applications’ by K. Bouferrache <em>et al.</em>, <em>RSC Adv.</em>, 2025, <strong>15</strong>, 11923–11933, https://doi.org/10.1039/D5RA00862J.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17377-17377"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra90062j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and FTIR spectroscopic studies of matrix-isolated 3-thio-1,2,4-triazole complexes with carbon dioxide. The UV-induced formation of thiol⋯CO2 complexes†","authors":"Karolina Mucha, Magdalena Pagacz-Kostrzewa and Maria Wierzejewska","doi":"10.1039/D5RA02230D","DOIUrl":"https://doi.org/10.1039/D5RA02230D","url":null,"abstract":"<p >Matrix isolation FTIR spectroscopy was combined with quantum chemical calculations to characterize complexes of 3-thio-1,2,4-triazole (ST) with carbon dioxide. Geometries of the possible 1 : 1 and 1 : 2 complexes were optimized at the DFT (B3LYPD3) level of theory with the 6-311++G(3df,3pd) basis set. The computational results show that ST interacts specifically with carbon dioxide through different hydrogen bond and van der Waals interactions. For the 1 : 1 complexes of the most abundant ST thione tautomer, four stable minima, ST<em>n</em>⋯CO<small>₂</small>, have been located on the potential energy surface. In contrast, for the ST thiol tautomer, three STl⋯CO<small>₂</small> structures were optimized. Experimentally, the two most stable 1 : 1 complexes of ST<em>n</em> with CO<small>₂</small>, characterized by the presence of the N–H⋯O hydrogen bridge and an additional S6⋯C10 interaction, were identified in solid argon upon deposition. Annealing of the matrix at 32 K proved that one 1 : 2 structure is also present, resulting from the addition of a second CO<small>₂</small> molecule to the 1 : 1 complexes. The laser irradiation at <em>λ</em> = 270 nm, apart from generating the thiol tautomer of ST, also leads to the formation of three thiol⋯CO<small>₂</small> complexes. Furthermore, the presence of CO<small>₂</small> in the argon matrix was found to influence the efficiency of the UV-induced thione–thiol tautomerization, though to a lesser extent than nitrogen. This suggests that while CO<small>₂</small> forms stronger intermolecular interactions with ST, its impact on tautomerization kinetics is less pronounced, highlighting the nuanced role of specific gas-phase interactions in modulating photochemical transformations in low-temperature matrices. The findings presented in this work not only enhance the fundamental understanding of weak intermolecular interactions but also provide new insights into the role of CO<small>₂</small>-specific effects in photochemical and structural transformations of heterocycles.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17379-17387"},"PeriodicalIF":3.9,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02230d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of non-stoichiometric Mn and Cr on the hydrogen storage properties of Ti–Mn-based alloys","authors":"Qiuyang Pan, Hao Shen, Xingbo Han, Jianhui Zhu, Zhilin Li, Taijun Pan, Linhua Xu and Lijun Lv","doi":"10.1039/D5RA00542F","DOIUrl":"https://doi.org/10.1039/D5RA00542F","url":null,"abstract":"<p >The effects of non-stoichiometric Mn and Cr on the hydrogen storage properties of Ti–Mn-based Ti<small>_0.84</small>Zr<small>_0.16</small>Mn<small>_{0.9+<em>x</em>}</small>Cr<small>_0.7</small>Fe<small>_0.1</small> (<em>x</em> = 0, 0.1, 0.2) and Ti<small>_0.84</small>Zr<small>_0.16</small>Mn<small>_0.9</small>Cr<small>_{0.7+<em>y</em>}</small>Fe<small>_0.1</small> (<em>y</em> = 0, 0.1, 0.2, 0.3) alloys were investigated. The alloys were synthesized by arc melting and crystallized in a single C14-type Laves phase structure. With increasing Mn and Cr content, the equilibrium plateau pressures of the alloys during hydrogen absorption/desorption increased markedly, while the plateaus became flatter and the maximum hydrogen absorption capacities showed a slight decrease. Lower Mn/Cr ratios contribute to reduced hysteresis and lower plateau pressures. However, this improvement is associated with a decline in hydrogen storage capacity. The cyclic performance of the Ti<small>_0.84</small>Zr<small>_0.16</small>Mn<small>_0.9</small>Cr<small>_0.7</small>Fe<small>_0.1</small> alloy, which exhibited excellent hydrogen storage properties, was studied. It was found that the capacity retention rate reached 96.2% after 500 hydrogenation–dehydrogenation cycles.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17153-17163"},"PeriodicalIF":3.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00542f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of dendritic mesoporous silica nanoparticles by ultrasonic assisted microchannel continuous flow reaction†","authors":"Chunpeng Zhang, Xiujun Wang, Jian Zhang, Shengzhen Hou, Qingqing Tang, Ming Duan and Shenwen Fang","doi":"10.1039/D5RA00745C","DOIUrl":"https://doi.org/10.1039/D5RA00745C","url":null,"abstract":"<p >Dendritic mesoporous silica nanoparticle (DMSN) possess advantages such as high specific surface area, excellent chemical stability, and good biocompatibility, which make it is a research hotspot in the field of nanomaterials. The microemulsion templating method (MET) is one of the common methods for synthesizing DMSN, but it typically requires a long reaction time. In this paper, we propose an ultrasonic-assisted microchannel continuous flow reaction to shorten the reaction time. The ultrasonic-assisted microchannel continuous flow reaction system consists of an injection system, dispersion chip, ultrasonic-assisted mixing chip, reaction coil, and condensation coil. By optimizing factors including total flow rate, material ratio, reaction temperature, reaction coil inner diameter, reaction coil length, and the concentration of NaOH and HCl in the microemulsion, the optimal synthesis conditions were determined. Under the best conditions, the reaction time for synthesizing DMSN was 33.6 min; compared to the 24 h required for synthesis in the three-neck flask, it had been shortened by 42 times. The findings of this study provide a new method for the preparation of DMSN.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17230-17240"},"PeriodicalIF":3.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00745c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct vicinal sulfonyloximation of alkenes: an efficient and straightforward approach towards the synthesis of α-sulfonyl ketoximes","authors":"Zinatossadat Hossaini, Shahrzad Abdolmohammadi, Shakir Mahmood Saeed, Wadhah Hasan Alkhazali, Waam mohammed Taher, Mariem Alwan, Mahmood Jasem Jawad, Hiba Mushtaq and Esmail Vessally","doi":"10.1039/D5RA02712H","DOIUrl":"https://doi.org/10.1039/D5RA02712H","url":null,"abstract":"<p >Direct vicinal sulfonylative difunctionalization of simple alkenes represents a powerful strategy for the rapid assembly of β-functionalized sulfones from simple starting materials. In this context, the direct sulfonyloximation of alkene substrates has recently received much attention from the chemical community owing to important applications of α-sulfonyl ketoxime products in organic synthesis. This review provides an overview of recent research on the titled reactions, with an emphasis on the reaction patterns and mechanisms. Literature has been surveyed until the end of 2024.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17174-17185"},"PeriodicalIF":3.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02712h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxidative stress-induced DNA damage and apoptosis in multiple cancer cell lines: novel anticancer properties of marine Aspergillus oryzae NGM91 extract†","authors":"Rana Hussein Naser, Zahraa Falah Azeez, Zinab Alatawi, Amani Albalawi, Taghreed Shamrani, Aisha M. A. Shahlol, Mohammad EL-Nablaway, Hanadi A. Alahmadi, Ghfren S. Aloraini, Nagwa A. Tharwat, Amr Fouda and Ahmed Ghareeb","doi":"10.1039/D5RA02028J","DOIUrl":"https://doi.org/10.1039/D5RA02028J","url":null,"abstract":"<p >This study explored the metabolites and bioactive potential of the ethyl acetate extract from a marine-derived fungal strain, <em>Aspergillus oryzae</em> NGM91, isolated from Red Sea sediments. Chemical profiling through FT-IR, GC-MS, and HPLC analysis revealed a complex composition dominated by benzyl benzoate (79.99%) and rosmarinic acid (162.15 μg ml<small>⁻¹</small>) as major constituents. The fungal extract exhibited potent free radical scavenging activity (DPPH IC<small>₅₀</small> = 17.26; ABTS IC<small>₅₀</small> = 27.91 μg ml<small>⁻¹</small>), with high total antioxidant capacity (476.57 μg per mg AAE) and ferric reducing power (302.62 μg per mg AAE). It demonstrated selective COX inhibition (COX-1 IC<small>₅₀</small>: 20.66 μg ml<small>⁻¹</small>; COX-2 IC<small>₅₀</small>: 36.32 μg ml<small>⁻¹</small>). Cytotoxic screening showed significant activity against PC3 cells (IC<small>₅₀</small>: 70.47 μg ml<small>⁻¹</small>), PANC-1 (IC<small>₅₀</small>: 90.42 μg ml<small>⁻¹</small>), HepG2 (IC<small>₅₀</small>: 100.36 μg ml<small>⁻¹</small>), and Caco-2 cells (IC<small>₅₀</small>: 104.69 μg ml<small>⁻¹</small>), while exhibiting lower cytotoxicity towards normal Wi-38 fibroblasts (IC<small>₅₀</small>: 230.31 μg ml<small>⁻¹</small>). In PC3 cells, the extract induced oxidative stress markers (MDA: 13.63 μmol mg<small>⁻¹</small>; NO: 66.13 μmole per mg), modulated antioxidant enzyme activities, upregulated antioxidant genes (CAT: 1195%, SOD: 788%, GPx: 473%, GST: 251%), increased DNA damage (205.1%), activated apoptotic pathways <em>via</em> BCL-2 downregulation and BAX/P53/Caspase-3 upregulation, and induced G1 phase arrest (72.97%). These findings demonstrate <em>A. oryzae</em> NGM91's therapeutic potential through oxidative stress-mediated DNA damage and apoptotic cell death induction in PC3 cancerous cells.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 22","pages":" 17203-17221"},"PeriodicalIF":3.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02028j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}